发状念珠藻的分离纯化及人工培养条件研究

为探讨发状念珠藻的分离纯化与人工培养条件,以采自陇西县发状念珠藻原植体为实验材料,经分离纯化后考察培养基、温度、光照对发状念珠藻生长的影响。成功分离纯化发状念珠藻藻种,其分别在BG11、28℃以及50μmol·m^-2·s^-1培养条件得到最大生长速率。该研究结果为将来大规模人工培养发状念珠藻提供科学依据。     

Towards a cohesive curriculum tourism: The case for a distinct discipline

This paper addresses a controversial topic in tourism scholarship which is simultaneously a problem and an opportunity in tourism education: the philosophical issue of academic disciplines and specifically, the question of a distinct discipline in tourism studies. It is argued that the orthodox approach to tourism education, multi-disciplinary studies, has become an impediment. It is suggested that a new discipline can be created by organizing the existing body of knowledge and that such a discipline can become the core of an inter-disciplinary approach. Certain characteristics of an embryonic discipline are outlined and innovations in this area at Sydney Technical College are discussed.     

Tourism occupations,career profiles and knowledge

This paper summarizes the approach and main findings of a research study undertaken by the Tourism Society into occupations, career profiles and knowledge requirements of professionals engaged in tourism. It outlines the main stages in the research program, including the identification of a body of knowledge about tourism, the development of an occupational classification, and a survey of professionals employed in tourism. It then presents and comments on findings covering occupational classifications, career profiles and knowledge requirements, making particular reference to the implications for tourism education. The study is very much a pioneering work in this field and it is confined to the experiences of the United Kingdom.     

Validating the international tourist role scale

This study was designed to validate the international tourist role scale and the three dimensions it revealed. The purpose of this attitudinal scale was to measure the tourist role typology. United States adult outbound tourists flying with 11 major airlines returned useful questionnaires. This study validated the role scale as a reliable one that properly identified three conceptual dimensions of international tourist typology and successfully provided measures of tourists’ novelty-seeking preferences on the three dimensions. The study demonstrated, however, that the scale would measure the novelty-seeking preferences of international tourists more effectively if it were supplemented by other measures.     

Measuring perceived pre-purchase risk for a new industrial product

Risk is an important element in industrial adoption decisions. This paper proposes a method to investigate how different group of individuals influencing the adoption of a new industrial product differ in their assessment of the risks. Two dimensions of risk are distinguished: (1) the likelihood that adoption of the new product will have undesirable consequences, and (2) the perceived intensity of these consequences both at the organizational and at the individual level. Purchase consequences are measured in terms of product economics and product reliability. Multivariate analysis of variance is used to assess how decision participants differ in their assessment of risk components. An attempt is made to assess the relative importance of these various components in the formation of individual preferences. The implications of the analysis for the development of better industrial marketing strategies are discussed.     

Industrial market segmentation by the structure of the purchasing process

This article presents a methodology for segmenting industrial markets on the basis of functional involvement in phases of the purchasing decision process. A decision matrix is developed as a structured measurement instrument to collect information about the composition of decision making units within target firms. The implications of this segmentation approach for industrial marketing strategy formulation are discussed.     

Price formation in tourism industry branches

To examine the pricing behavior of suppliers of holiday goods and services, a margin approach, originally developed to explain price formation in service industries, has been applied to different sectors of the tourism industry, using Dutch data. The fundamental idea of the margin approach is that both cost and demand factors influence price formation. The specific market situation is supposed to determine the extent to which changes in cost factors can be passed on to consumers. Despite difficulties with the quality of data, the results can be characterized as promising.     

The language of Japanese tourism

This paper discusses the way in which language is used in contemporary Japanese travel brochures. What concepts do travel agencies use to attract tourists? What themes continually recur in the advertising literature? Many of these concepts and themes are the same as those important to tourism in the Western world, but there are certain cultural themes or ways of treating tourist attractions which are peculiar to Japanese tourism. A second aim is to consider the “keywords” of Japanese tourism: those stressed in the advertising for domestic tourism and those stressed for international tourism. The relation between these two possibly antagonistic sets of keywords is discussed in terms of the ideological principles around which Japanese society is organized, and it is hypothesized that keywords for international tourism portend great and long-term changes in the fabric of Japanese society.     

Ludic and liminoid aspects of charter yacht tourism in the Caribbean

The behavior of charter yacht tourists in the British Virgin Islands can be viewed as a symbolic expression and an inversion of the central sexual and social ideologies of the tourists' home culture. The paper analyses the behavior as a form of play, following Huizinga and Norbeck, and in terms of liminality and communitas, following Victor Turner. The conspicuously “anti-structural” mores and behavior allow the tourists licensed suspension of everyday rules, while reinforcing the latter. The tourists' image of the Caribbean as a sensual playground and the hosts' image of the tourists as self-centered and frivolous are established and perpetuated in this liminoid context.     

Tourism and urban revitalization a case study of Pore , Yugoslavia

This article emphasizes the necessity of a multidisciplinary approach to revitalization of old urban areas through tourism. Historical urban values require special multidisciplinary care when transformed to suit the needs of both tourists and local population. The case study of the old urban area in Pore illustrates how this can be done. The study was aimed at identifying reasons for which tourists and local population visit Pore 's old urban core. It also intended to analyze the visitors' reactions to and expectations of old urban areas. The findings were to help make revitalization decisions and introduce new measures into the revitalization process itself, which in turn aimed at contributing to both future tourism developments and preservation of the area's historical and cultural heritage.